Strengths and Flow Enhancers from Cement to Concrete
Description
MCH C-C are polycarboxylate based products used to improve cement quality in terms of workability and strength, and to aid cement grinding by increasing mill production.
They are highly concentrated additives formulated with only selected raw materials, to guarantee absolute constancy of quality and superior performance.
Characteristics
MCH C-C, thanks to their formulation rich in acrylic polymers, notably improve the cement workability and reduce the water demand, especially in blended cements.
Moreover, thanks to their formulation, they increase the cement strength because of the improved granulometric distribution, the higher fineness, and the higher calcium silicates hydration rate of the finished product.
Applications
Use MCH C-C in case you would like to improve the performance of new cements (i.e., calcined clay, demolition waste, recycled concrete, bricks, tiles) where a significant increase of workability is required.
Moreover, the use of MCH C-C allows to increase mill output and reduce the specific energy consumption significantly, to improve late strengths of cement and reduce the clinker content without affecting cement quality.
Chemical-physical data
Please refer to the appropriate safety data sheets.
Dosage 0.08 – 0.20%
We suggest the higher dosage threshold, if the aim is the substitution of clinker with blending materials (i.e., pozzolana, fly ash, calcined clay, demolition waste, recycled concrete, bricks, tiles) or the strong reduction of the water demand of the cement.
The optimum dosage, in any case, must be optimized through a reliable industrial trial, preferably with the help of MAPEI Cement Additives Division technicians.
MCH C-C should be added to the clinker on the mill feed conveyor belt or sprayed in the first mill compartment using a membrane or piston dosing pump.
Packaging
MCH C-C additives are available in plastic totes measuring 275 U.S. gals. (1 041 L) and in bulk tankers with 45,000 lbs. (20 412 kg) in capacity
Storage
Maintain the additives at a temperature above 32°F (0°C).
In normal conditions MCH C-C shelf life is at least 24 months.
Technical assistance
The MAPEI Cement Additives Division specialists are available to optimize the grinding circuit during the industrial trials and to suggest the most suitable dosage system.
Safety instructions
During the usage of MCH C-C it is recommended to take the usual precautions for the handling of chemicals by wearing protective gloves and safety goggles.
Instructions for the safe use of our products can be found on the latest version of the Safety Data Sheet available upon request.
PRODUCT FOR PROFESSIONAL USE.
Warning
N.B. – Although the technical details and recommendations contained in this product report correspond to the best of our knowledge and experience, all the above information must, in every case, be taken as merely indicative and subject to confirmation after long-term practical applications: for this reason, anyone who intends to use the product must ensure beforehand that it is suitable for the envisaged application: in every case, the user alone is fully responsible for any consequences deriving from the use of the product.